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Alarms · Digital bite indication · Our take
Delkim Txi-D v2 Digital Bite Alarm
Single alarm
A proper high-end alarm for anglers who want sharp bite detection, loads of tuning and serious security on the bank.
- Model DD102 with piezo vibration sensing for line movement and vibration detection.
- Digital radio range of up to 750 m, depending on bankside conditions.
- Twin 3 mm LEDs offer six colours, adjustable brightness and day/night mode.
- Compatible with the original RX-D receiver and the RX-D v2, with a four-year warranty.
Make sure it’s the right one. This review covers the Delkim Txi-D v2 Digital Bite Alarm, model DD102. It’s the UK-made digital version designed to work with Delkim’s RX-D and RX-D v2 receivers.
Tackle Index Score
Tackle Index score
A premium alarm with excellent control and security features, best suited to anglers who’ll genuinely use the digital system.
Desk-research score from specs, price and fishing fit · How we score
- Product Quality9.9/10
- Performance9.9/10
- Impact on Fish Catching9.4/10
- Ease of Use8.3/10
- Value for Money8.3/10
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Who it suits
Is it right for you?
Great for
- Carp anglers fishing long sessions or valuable venues. The anti-theft system, receiver link and low-battery warnings help keep an eye on your gear when you’re tucked up in the bivvy.
- Anglers who like highly personalised indication. You can tune tone, response, LED brightness, colour, beep speed and stealth mode around the swim and conditions.
Maybe skip if
- Occasional anglers buying their first alarm. There are cheaper, simpler alarms that’ll get the job done without so many settings or the investment in a receiver system.
- Anyone who dislikes menu-heavy tackle. The adjustment is powerful, but it takes a little time to learn and set everything exactly how you like it.
The lowdown
Introducing the Delkim Txi-D v2 Digital Bite Alarm
A proper high-end alarm for anglers who want sharp bite detection, loads of tuning and serious security on the bank.
- Model DD102 with piezo vibration sensing for line movement and vibration detection.
- Digital radio range of up to 750 m, depending on bankside conditions.
- Twin 3 mm LEDs offer six colours, adjustable brightness and day/night mode.
- Compatible with the original RX-D receiver and the RX-D v2, with a four-year warranty.
Quick verdict
Verdict: a top-drawer alarm for serious sessions
The Txi-D v2 is a cracking bit of kit for anglers who want precise vibration-based indication, a huge amount of adjustment and dependable receiver connectivity. The 750 m claimed range, anti-theft system and excellent night-time control make it much more than a box that simply beeps when a carp moves off.
It’s expensive tackle, mind, and some anglers won’t need this level of control. But if you’re already invested in the RX-D system, or you fish valuable kit in big, remote venues, this is a seriously capable alarm that earns its place on the pod.
A premium alarm with excellent control and security features, best suited to anglers who’ll genuinely use the digital system.
Desk-research score from specs, price and fishing fit · How we score
- Product Quality
- 9.9/10
- Performance
- 9.9/10
- Impact on Fish Catching
- 9.4/10
- Ease of Use
- 8.3/10
- Value for Money
- 8.3/10
UK manufacture, a four-year warranty and a well-developed feature set give it a properly premium feel.
Piezo sensing, adjustable response, 32 tones and digital radio communication offer strong all-round performance.
Clearer, more tuneable indication can help you react appropriately to liners, drop-backs and proper runs.
The controls are useful and logical once learned, but the sheer number of settings brings some initial faff.
It offers loads for the money in the premium bracket, though casual anglers may not use enough of it to justify the outlay.
Head to head
How it stacks up
Side by side with the closest kit we've reviewed. This updates as we add more reviews.
Delkim
Delkim Txi-D v2 Digital Bite Alarm (this one)
Top scorer
Scores are our own, out of 10. Best in each row is in green. Prices change, so check the latest before you buy.
The full rundown
Everything you'll want to know about the Delkim Txi-D v2 Digital Bite Alarm
The Delkim Txi-D v2 is the sort of alarm that makes a basic bite alarm look a bit, well, basic. This is proper high-end carp kit, built for anglers who want to tune every part of their indication and keep tabs on the rods from the bivvy. It’s model DD102, made in the UK, and it brings Delkim’s distinctive vibration-sensing approach into a full digital alarm system.
At the heart of it is piezo vibration sensing. In plain English, the alarm watches for movement and vibration through the line rather than relying solely on a conventional roller wheel. That gives you a responsive platform for everything from tiny plucks and liners to a full-on screaming take. As ever, the clever bit is setting it sensibly for the swim rather than whacking every control to maximum and hoping for the best.
There are 32 digital tone settings, so you can pick a sound that cuts through a windy night, a noisy campsite or the general faff of a busy lake. The beep-speed adjustment is particularly handy because it keeps the speed relationship in step as you alter the response. That means your indication stays sounding natural and consistent instead of turning into a frantic electronic racket when you make it more sensitive.
Visual indication is well covered too. Twin high-visibility 3 mm LEDs are available in six colours: purple, red, white, blue, green and yellow. Brightness can be adjusted, and there’s a day/night mode to keep things visible without making the bivvy glow like a kebab shop. If you prefer to keep things discreet, stealth mode deactivates the LEDs when the alarm activates.
That stealth option is more than a gimmick on dark, pressured waters. Some anglers like a quick flash to confirm what’s happening, while others don’t want a bright light broadcasting their swim every time a bream has a scratch. With this alarm, you can choose. The 2.5 mm NiteLite output also lets you connect illuminated visual indicators when you want a clear heads-up on the rod without relying only on sound.
The digital radio side is aimed at big-water and longer-distance fishing. Delkim quotes up to 750 metres, although that figure will always depend on the bankside conditions. Trees, contours, buildings, weather and the layout of the venue can all have a say. Still, the range gives you plenty of breathing room when the rods are a fair hike from the bivvy or you’re fishing a spread-out complex.
Security is another proper strength. Advanced anti-theft protection can alert the compatible RX-D receiver if the alarm is moved or switched off. That won’t replace common sense — keep your gear clipped up and don’t wander off for hours — but it adds a useful layer of reassurance around expensive rods, reels and alarms. The receiver compatibility also makes the Txi-D v2 a straightforward choice for RX-D users.
Power management is sensibly handled. The alarm continuously checks its battery level and provides low-battery warnings, so you’re less likely to discover a flat PP3 just as the weather turns nasty. Delkim recommends a quality 9V PP3, such as a Duracell MN1604. Add the four-year warranty and UK manufacture, and this feels like a long-term purchase rather than disposable tackle.
The catch is simple: this isn’t a bargain alarm and it isn’t aimed at someone who just wants one loud beep and a flashing light. There’s a learning curve, too, because all those controls need setting up properly. But for a serious carp angler who wants finely tuned indication, strong digital connectivity and extra security, the Txi-D v2 is a very polished bit of kit. Proper posh, yes — but usefully posh.
Specifications
The nuts and bolts
- Model
- Delkim Txi-D v2, DD102
- Detection system
- Piezo vibration sensing for line movement and vibrations
- Digital radio range
- Up to 750 m, depending on bankside conditions
- LEDs
- Twin high-visibility 3 mm LEDs; six colours
- Tone settings
- 32 digital tone settings
- Battery
- Recommended high-quality 9V PP3, such as Duracell MN1604
- Warranty
- Four years; made in the United Kingdom
Specs checked with Delkim, Oct 2026.
Spot a model or spec change?
Our take
Why this alarm stands out
Delkim’s piezo vibration sensing gives the Txi-D v2 its distinctive feel. Rather than relying purely on a moving roller wheel, it responds to line movement and vibration, giving you a very tuneable way to deal with liners, tow and proper screaming takes. Add six LED colours, 32 tones, stealth mode and a clever anti-theft alert, and it’s built for anglers who like their setup dialled in rather than left on factory settings.
Closer look
A very tuneable alarm with serious digital brains
The Txi-D v2 combines piezo vibration sensing with digital radio communication. That gives you a responsive alarm at the rod and a dependable way to send the signal back to the compatible RX-D receiver. You can alter the tone across 32 settings, adjust response and change the beep speed so the pattern stays sensible as sensitivity changes.
The twin 3 mm LEDs offer six colours, plus adjustable brightness and day/night mode. Stealth mode turns the LEDs off during an activation, which is useful when you’re trying to keep the swim dark. There’s also a 2.5 mm NiteLite socket for illuminated visual indicators, giving you another option for seeing what’s happening after lights-out.
Worth knowing. The up-to-750 m radio range is a maximum figure, not a promise for every lake. Bankside terrain and obstructions matter. Keep the receiver within a sensible working distance and always check your setup before settling into the bivvy.
Who it suits
Best for anglers who like control and reassurance
This is a strong fit for serious carp anglers fishing long sessions, large complexes or venues where the rods may be a good walk from camp. The anti-theft alert adds peace of mind if you need to leave the swim briefly, while low-battery warnings help prevent avoidable headaches during a multi-night session.
It also suits anglers with an existing RX-D system. The Txi-D v2 works with the original RX-D and the RX-D v2, so you’re not forced into a complete receiver change. Once you’ve set your preferred tone, colour, brightness and response, the alarm can become a very personal part of your setup.
Worth knowing. Don’t automatically run maximum sensitivity. On a windy day, in tow or with busy liners, sensible adjustment will give cleaner information and fewer false alarms. Save the full-on setting for when the conditions and presentation call for it.
FAQs in full
The bits anglers usually want cleared up
Its piezo vibration sensing is designed to pick up line movement and vibrations, so it gives you plenty of scope for detecting subtle activity. The final result still depends on line tension, lead setup, wind and how you tune the response.
Yes. The six-colour choice lets you assign colours to individual rods, which is dead handy when several alarms are going off or you’re checking the setup from the bivvy at night.
No. It’s an extra layer of security, not an excuse to leave expensive tackle unattended. The alarm can alert the compatible RX-D receiver if it’s moved or switched off, but sensible bank habits still matter.
On paper
Pros & cons
What we like
- Very adjustable indication, including 32 digital tones and response-linked beep speed.
- Strong digital range, with up to 750 m possible in suitable bankside conditions.
- Excellent night control, stealth mode and six-colour LED choice.
- Advanced anti-theft alert adds useful peace of mind around expensive tackle.
- Made in the UK and covered by a four-year warranty.
Worth knowing
- High-end pricing won’t suit a tight budget or occasional angler.
- The extensive menu of settings can feel like a faff until you’ve got it dialled in.
- The quoted radio range depends heavily on the venue, terrain and bankside conditions.
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Your questions answered
What anglers want to know
The stuff you’d ask your mate on the next peg. Straight answers, no waffle.
01Does the Delkim Txi-D v2 work with the RX-D v2 receiver?
Does the Delkim Txi-D v2 work with the RX-D v2 receiver?
Yes. It works with both the original Delkim RX-D receiver and the RX-D v2.
02How far does the Txi-D v2 transmit?
How far does the Txi-D v2 transmit?
Delkim gives a digital radio range of up to 750 m, although the usable distance depends on bankside conditions, terrain and obstructions.
03What battery does it use?
What battery does it use?
It uses a 9V PP3 battery. Delkim recommends a high-quality option, such as the Duracell MN1604, and the alarm continuously checks battery level and gives low-battery warnings.
What anglers say
The word from the bank
Our read: verdict: a top-drawer alarm for serious sessions. The strongest reasons to choose it are very adjustable indication, including 32 digital tones and response-linked beep speed. and strong digital range, with up to 750 m possible in suitable bankside conditions.; the main trade-off is high-end pricing won’t suit a tight budget or occasional angler..
Our take on the feedback
Why it appeals
Checked Sept '26 — “Very adjustable indication, including 32 digital tones and response-linked beep speed.”
Best fit
Checked Sept '26 — “Carp anglers fishing long sessions or valuable venues: The anti-theft system, receiver link and low-battery warnings help keep an eye on your gear when you’re tucked up in the bivvy.”
Worth knowing
Checked Sept '26 — “High-end pricing won’t suit a tight budget or occasional angler.”
Tackle Index’s take from the product details and fishing fit we checked. We haven’t found enough independent public feedback to call this an angler consensus yet.
Angler score
What our readers rate Delkim Txi-D v2 Digital Bite Alarm
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